SEOUL, Nov. 28 (Yonhap) -- North Korea has deployed SA-2 surface-to-air missiles to its west coast near the Yellow Sea border with South Korea as U.S.-led naval drills got underway in a show of force against the North's deadly artillery attack on a South Korean island earlier last week, government sources said Sunday.

"(The missiles) appear to be targeting our fighter jets that fly near the Northern Limit Line (NLL)," the source said on customary condition of anonymity, referring to the Yellow Sea border.

"SA-2 Has a range of 12 kilometers,about = 7.5 miles."

South Korea and the U.S. on Sunday launched large-scale naval drills off the Korean Peninsula's west coast, far south of the border where four people were killed and 18 others wounded in Tuesday's surprise attack on Yeonpyeong Island.
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"The military is preparing for the possibility of further provocations as the North Korean military has deployed firepower near the NLL and is preparing to fire," the source said.